Merge remote-tracking branch 'cloud-schoolapi/ywx'

sexam/src/main/java/com/xhkjedu/sexam/mapper/paper/EPaperMapper.java

 
     //修改试题设置答案
     void updateEPaperAnswered(@Param("paper") EPaper paper);
+
+    //根据试卷id获取考试id
+    Integer getExamIdByEpId(@Param("epid") Integer epid);
 }

sexam/src/main/resources/mapper/paper/EPaperMapper.xml

     <update id="updateEPaperAnswered">
         update e_paper set answered=#{paper.answered} where epid=#{paper.epid}
     </update>
+
+    <!--根据试卷id获取考试id-->
+    <select id="getExamIdByEpId" resultType="java.lang.Integer">
+        select examid from e_paper where epid=#{epid} limit 1
+    </select>
 </mapper>